This practicum examined ways to improve treatment of hard-to-serve youths at a non-profit residential mental health center. Youthworkers at the center displayed a low rate of individual treatment plan strategy implementation and lacked skills and knowledge in outcome-oriented individualized treatment planning. Recommendations for improving the program focused on three areas: in-service training, supervision, and agency leadership. A moderate rate of improvement followed the implementation of recommendations in these three areas, suggesting that the problem analysis and solutions of the study were accurate. After implementing the recommendations, youthworker supervisors became more effective with their youthworkers. In addition, the commitment of the youthworker supervisors to the project and to the treatment planning process facilitated the successful outcome of the study. As a result of the study, it was recommended that: (1) a regular in-service training program be established; (2) follow-up seminars be established to ensure continuing expertise; (3) agency leadership be tapped as a resource to all levels of the organization; (4) the use of video tapes as supervisory tools be continued; and (5) supervision be used as a tool to increase employee knowledge and quality of service. Contains 28 references. Five appendices present documents, instruments, and outlines. (KW)